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Measured on six things

Fast Mac image viewer for comparing and culling photos

Security

HTTPS and HSTS enforced with SPF, but CSP, frame protection, Referrer-Policy, Permissions-Policy and DMARC are all absent — 5/12 checklist points. No SOC 2, pen-test or bug bounty claims found.

Screenshots

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Just Look!

About this app

Just Look! is a fast, folder-based image viewer and photo culling app for macOS. Open a folder and review images immediately, without importing them into a catalog. Navigate quickly with keyboard shortcuts, zoom into details, and mark your favorite shots as picks. Compare 2–6 photos side by side in Compare Grid, with synchronized zoom and a Best pin to help choose the strongest shot. Hold Option when switching images to preserve zoom and position for close comparisons. Review JPEG, PNG, HEIC, WebP, TIFF, GIF, RAW and other supported formats, including images stored on network drives. Work through a shoot, filter to your picks, and move unwanted images to Trash. Designed for photographers and Mac users who want a lightweight, efficient way to view, compare, and select photos.

Key features

1Folder-based viewing with no import or catalog — open a folder and start reviewing immediately.
2Compare Grid for 2–6 photos side by side with synchronized zoom and a Best pin that holds slot one.
3Option-key zoom lock preserves zoom and position while navigating; ⌥⌘⌫ trashes without losing your place.
4Broad format support including JPEG, PNG, HEIC, WebP, TIFF, GIF, JPEG XL, AVIF and many camera RAW formats.
5Picks, ratings, color tags, batch cleanup, and crop & straighten (Pro) in a keyboard-first workflow.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Professional Photographers

Pain points

Slow culling of large RAW photo batches

Primary needs

Fast culling and side-by-side comparison

Demographic

Enthusiast Photographers

Pain points

Preview lacks efficient photo selection

Primary needs

Simple viewing, comparison, and picks

Demographic

Photo Editors & Retouchers

Pain points

Hard to compare nearly identical shots

Primary needs

Multi-image grid with synchronized zoom

Demographic

Mac Users with Large Photo Libraries

Pain points

Slow browsing of local and NAS folders

Primary needs

Fast folder viewing without importing

Scout Review

Written by AI from measured evidence, scored out of 100.

Just Look! is a focused Mac image viewer and culling app that does one thing well: open a folder, compare shots, pick keepers, trash the rest. The measured evidence backs the pitch — a 94/100 mobile Lighthouse score, 100/100 desktop, and a 100/100 automated accessibility audit. The app UI, judged from store screenshots, is authentically Mac-native with a clear filmstrip and a Compare Grid that actually shows the synchronized-zoom workflow. The weak spots are security hygiene (5/12 header checklist points, no DMARC, no CSP, no security page) and the absence of any public user ratings to confirm the experience. It is a competent, well-positioned niche tool rather than a category-defining one.

Measure by measure

Usability

Keyboard-first flow is the product: G for grid, B for Best, Option to lock zoom, ⌥⌘⌫ to trash without losing your place. Onboarding is 'open a folder.' No ratings yet, so real-world learning curve is unverified.

Design

Judging the app UI from store screenshots: authentic Mac-native chrome, clear filmstrip selection, and a genuinely legible Compare Grid. Homepage is clean but repeats feature cards and uses tiny body text below the fold.

Speed

Lighthouse mobile 94/100 with LCP 2.9s, CLS 0, TBT 0ms; desktop 100/100. Site claims Metal-accelerated zoom and navigation. No lag complaints in collected evidence.

Security

HTTPS and HSTS enforced with SPF, but CSP, frame protection, Referrer-Policy, Permissions-Policy and DMARC are all absent — 5/12 checklist points. No SOC 2, pen-test or bug bounty claims found.

Accessibility

Lighthouse accessibility 100/100 on automated checks, localized in 4 languages, and the whole product is keyboard-driven. No public WCAG statement found, so the score sits at the top of the measured band, not beyond it.

Growth

Sharp niche: Mac photographers culling RAW bursts without a catalog, with a real wedge — 2–6 shot Compare Grid, synchronized zoom, Best pin. Early (domain 0.4 years, no store ratings), but the idea has room.

Improvement areas

Security headers are incomplete (5/12): no CSP, DMARC, Referrer-Policy, Permissions-Policy or frame protection.
No public security or privacy page explaining local-only data handling.
No WCAG/accessibility statement despite a 100/100 automated audit.
Homepage repeats feature cards and uses very small body text below the fold.

Design & Usability

Judged on the app UI from store screenshots, Just Look! looks like a Mac app should: native window chrome, a filmstrip that makes the current image obvious, and a Compare Grid that actually demonstrates the pitch. The homepage is competent but repetitive — the same feature-card pattern repeated down the page with body text small enough to squint at. Usability is the strongest story: the workflow is keyboard-first and documented with real shortcuts (G, B, Option, ⌥⌘⌫), and onboarding is literally 'open a folder.' The gap is verification — no store ratings yet, so nobody has publicly confirmed the learning curve is as smooth as the screenshots imply.

Speed & Security

Speed is the standout measured dimension: Lighthouse mobile 94/100 with LCP 2.9s, CLS 0 and TBT 0ms, desktop a clean 100/100, plus a Metal-accelerated rendering claim that fits the product's fast-zoom pitch. Security is the weak flank. HTTPS and HSTS are enforced and SPF is present, but CSP, frame protection, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and DMARC are all missing — 5/12 on the header checklist. There is no security page, no SOC 2 or pen-test claim, and no bug bounty. For a local folder viewer the blast radius is smaller than a cloud SaaS, but the hygiene is thin.

Accessibility & Growth

Accessibility scores 100/100 on Lighthouse's automated axe checks, the app ships in 4 languages, and the entire workflow is keyboard-driven — a genuinely good sign for a photo tool. There is no public WCAG statement, so the score stays at the top of the measured band rather than above it. Growth is a judgement on the idea: the target is specific (Mac photographers culling RAW bursts without a catalog), the alternatives are real and numerous (Preview, Pixea, Xee, ApolloOne, Photo Mechanic, FastRawViewer, XnView MP), and the wedge is concrete — a 2–6 shot Compare Grid with synchronized zoom and a Best pin. That is a defensible niche, not a mass market. Domain age (0.4 years) and zero store ratings are context, not the score.

Conclusion

If you are a Mac photographer who dreads importing a shoot into a catalog just to cull it, Just Look! is aimed squarely at you and the evidence supports the core claim: it is fast, keyboard-first, and the Compare Grid is a real workflow, not a bullet point. Go in expecting a lightweight local tool, not an enterprise-grade one — the security headers are thin and there is no published compliance story. Try it on one burst before trusting it with a full shoot.

Suggestions for improvement

Add the missing security headers (CSP, Referrer-Policy, Permissions-Policy, X-Content-Type-Options) and publish a DMARC record.
Ship a short security/privacy page explaining that images stay local and nothing is uploaded — that is the product's best security argument.
Publish a WCAG/accessibility statement to back up the 100/100 automated score with a real commitment.
Break up the homepage feature-card repetition and raise body text size for scannability below the fold.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	Just Look!	Preview	Pixea	Xee	ApolloOne	Photo Mechanic	FastRawViewer	XnView MP
Folder browsing without import or catalog	Yes — core design, no catalog	Yes — opens files/folders, no catalog	Yes — folder browsing	Yes — folder and archive browsing	Yes — folder-based browsing	Yes — ingest/browse workflows	Yes — direct folder viewing	Yes — browser mode, optional catalog
Multi-image side-by-side comparison with synchronized zoom	Yes — 2–6 shots, synchronized zoom, Best pin	No — single image at a time	Limited — not a core comparison grid	No — single-image browsing	Partial — culling views, not 6-up sync zoom	Partial — contact sheet, not synchronized zoom	Partial — side-by-side, RAW-focused	Yes — image comparison feature
Camera RAW support	Yes — Canon, Sony, Nikon, Fuji, Olympus, Panasonic and more	Limited — via macOS RAW support	Yes — RAW support	Yes — many formats including RAW	Yes — strong RAW support	Yes — professional RAW workflows	Yes — RAW specialist with histograms	Yes — broad format support
Picks, ratings and batch culling	Yes — picks, stars, color tags, Trash Non-Picks (Pro)	No — basic viewing only	Partial — editing focus, limited culling	Basic — file management, no picks workflow	Yes — fast culling and ratings	Yes — industry-standard culling and metadata	Yes — ratings and XMP metadata	Yes — ratings, metadata, batch tools
Editing (crop, straighten, adjustments)	Crop & straighten only (Pro)	Basic — crop, rotate, markup	Yes — image adjustments and batch editing	Minimal — basic file management	Yes — image editing features	Minimal — culling, not editing	Minimal — exposure analysis, not editing	Yes — broad editing and batch conversion

Preview

Apple's built-in macOS image and PDF viewer. Offers basic image editing, zooming, and thumbnail navigation. Ideal for everyday viewing, but less specialized for reviewing large photo batches, marking picks, and comparing multiple shots.

Pixea

A modern macOS image viewer and editor supporting RAW, HEIC, WebP, and many other formats. Offers folder browsing, image adjustments, and batch editing. Compared with its broader editing focus, Just Look! emphasizes fast photo selection and multi-image comparison.

Xee

A lightweight macOS image viewer designed for quick browsing of images in folders and archives. Supports many formats and basic file management. Just Look! offers a more specialized workflow for selecting photos and comparing multiple images with synchronized zoom.

ApolloOne

A high-performance macOS photo viewer designed for photographers, featuring RAW support, metadata inspection, image editing, and fast photo culling. A direct alternative to Just Look!, which focuses on a simpler folder-based workflow, picks, and comparing up to six photos in a synchronized grid.

Photo Mechanic

Professional photo browsing and culling software focused on speed, image selection, metadata, and batch workflows. Popular for reviewing large shoots and preparing photos for editing. Just Look! provides a more streamlined Mac viewing experience with synchronized multi-image comparison.

FastRawViewer

A fast RAW photo viewer and culling tool with advanced exposure analysis, RAW histograms, focus inspection, ratings, and XMP metadata support. Focuses on evaluating RAW image quality, while Just Look! emphasizes convenient folder browsing and multi-image comparison.

XnView MP

A versatile image viewer, browser, and organizer supporting hundreds of file formats. Includes image comparison, metadata editing, batch conversion, and file management. Offers a broader set of tools, while Just Look! focuses on a simpler, keyboard-friendly photo viewing and culling workflow.

Comparing options? See Just Look! alternatives, scored side by side

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